Recumbent bicycle frame



FIG. 1 is a side elevation view of a recumbent bicycle frame showing our new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a rear elevation thereof;

FIG. 4 is a right side elevation thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a perspective view thereof. 

The ornamental design for a recumbent bicycle frame, as shown and described. 